head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Competitive PvP
A hero battle royale where teamwork and aim against human opponents decides fights.

Execution · Competitive PvP
A wrestling game testing grapple timing and prediction in versus matches.
My Hero Ultra Rumble leans Execution (Competitive PvP); WCW vs. nWo: World Tour leans Execution (Competitive PvP).
My Hero Ultra Rumble leans a little harder on execution, though the gap is small.
My Hero Ultra Rumble
aim and combo timing in battles
WCW vs. nWo: World Tour
Grapple timing and move inputs need precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
My Hero Ultra Rumble
predicting human opponent tactics
WCW vs. nWo: World Tour
Versus play rewards reading opponent grapple attempts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
My Hero Ultra Rumble
item and loot drops are random
WCW vs. nWo: World Tour
Move reversals and spirit meter add randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
My Hero Ultra Rumble
team comps and loadouts solvable
WCW vs. nWo: World Tour
Move-set knowledge and stamina management matter
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.